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The accepted toxic dose of mercury is 300ug/day there is 180ug of mercury per cubic meter of air. ingestion of 20,000L air per day is she at risk for mercury poisoning?
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
Write the reaction and predict the major organic products(s) for each of the following reactions. Make sure to consider stereochemistry & regiochemistry, if applicable.
How might there still have been a chemical reaction even though they could not see anything happen?
The pH of a 0.40 M HF(aq) solution is 1.93. Calculate the change in pH when 0.356 g of sodium fluoride is added to 50.0 mL of the solution. Ignore any change in volume.
What is the pressure of the gas in this mercury manometer if h = 73 mm and atmospheric pressure
Describe and explain the possible effect on your results of the following experimental errors or variations. In each case specify the component(s) whose percentage(s) would be too high or too low.
Coal = 3.9% sulphur power plant while producing electricity turns coal into sulphur dioxide gas calcium oxide is used to react with sulphur dioxide and forms solid calcium sulfite coal
What would be the expected effect on yield if only one mole of diethylamine per mole of alpha-chloro
If a reaction mixture contains only N2O and NO2 at partial pressures of 1.0 atm each, the reaction will be spontaneous until some NO forms in the mixture.
How many grams of acetic acid will you need to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution.
A compound was analyzed and found to contain 40.00% carbon, 6.72% hydrogren, and 53.25% oxygen with a molar mass of 180.0 grams.
A fishing boat accidentally spills 6.0 barrels of diesel oil into the ocean. Each barrel contains 42 gallons. If the oil film on the ocean is 2.5 × 102 nm thick, how many square meters will the oil slick cover?
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